	* {
	  margin: 0;
	  padding: 0;
	}

	.container {
	  width: 400px;
	  height: 300px;
	  position: fixed;
	  top: 0;
	  bottom: 0;
	  left: 0;
	  right: 0;
	  margin: auto;
	  background-color: lightblue;
	  border: 1px solid deepskyblue;
	  border-radius: 6px;
	}

	.container .txt {
	  width: 400px;
	  height: 100px;
	  display: flex;
	  border-bottom: 1px solid deepskyblue;
	}

	.container .btn {
	  width: 350px;
	  height: 200px;
	  padding-left: 100px;
	  padding-top: 20px;
	}

	.txt>span {
	  display: block;
	  position: relative;
	  width: 100px;
	  height: 60px;
	  margin: 20px;
	  background-color: pink;
	  text-align: center;
	  line-height: 60px;
	  border-style: groove;
	  font-weight: bold;
	  border: 0;
	  border-radius: 4px;
	  color: green;
	}

	.btn button {
	  display: block;
	  width: 200px;
	  height: 30px;
	  background-color: cadetblue;
	  border: 0;
	  color: white;
	  text-align: center;
	  line-height: 30px;
	  transition: all 1s;
	}

	.btn button:nth-child(2),
	.btn button:nth-child(3) {
	  margin-top: 30px;
	}

	.btn button:hover {
	  background-color: dodgerblue;
	  cursor: pointer;
	  animation: shake .7s linear;
	  background-color: dodgerblue;
	}

	@keyframes shake {
	  0% {
	    transform: translateX(0);
	  }

	  10% {
	    transform: translateX(-1px);
	  }

	  20% {
	    transform: translateX(2px);
	  }

	  30% {
	    transform: translateX(-4px);
	  }

	  40% {
	    transform: translateX(4px);
	  }

	  50% {
	    transform: translateX(-4px);
	  }

	  60% {
	    transform: translateX(4px);
	  }

	  70% {
	    transform: translateX(-4px);
	  }

	  80% {
	    transform: translateX(2px);
	  }

	  90% {
	    transform: translateX(-1px);
	  }

	  100% {
	    transform: translateX(0);
	  }
	}